SU1138004A3 - Herbicide composition - Google Patents

Abstract

A HERBICID COMPOSITION containing as an active substance 3- (H-isoproxycarbamoyloxy) anionyl propionic acid of the formula (I) O II OSMNSCHCH3; CH3CH2NOSINCHO II o.ch. This is due to the fact that, in order to increase the herbicidal activity, it additionally contains an N-ethyl-N-cyclohexyl-S-ethylthiolcarbamate of formula

Description

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The invention relates to chemical means for controlling weeds and undesirable vegetation, namely, herbicidal compositions containing synergistic mixtures of herbicidal active substances. Herbicidal compositions based on substituted anilides, carboxylic acid, for example, a composition that is known as an active substance 3- (N-isopropylcarbamoylox anilide. Propionic acid lj, are known. Herbidium compositions are also known as containing active substances are derivatives of thiol-carbamic acid, for example, L-ethylH-cyclohexen1-8-ethylthiolcarbamate 2j However, these herbicidal compositions, when used separately, do not provide the necessary degree of weed infestation. are suitable for one or another composition and require the use of increased doses, which leads to damage to cultivated plants ... The aim of the invention is to increase the herbicidal activity of the composition based on substituted anilides of carboxylic acids. This goal is achieved by the fact that the herbicidal composition on bases 3 - (N-isopropylcarbamoyloxy) anionic propionic acid of the formula OSMNSH (CH3) 2 CH3SCHSH-N-CHO additionally containing N-ethyl-K iclohexyl-3-Ztilthiolcarbamate of the form -N-CSC2H5 (II II O at the weight ratio (I) :( II ), equal to. 1: 0,666-6. Accordingly. 42 It has been established that the combined use of known herbicidally active. substances (I) and (II) gives a synergistic effect and provides a more complete destruction of various types of weeds. Forms of application of the herbicidal composition according to the invention: emustable emulsifiable concentrates, granules, etc. Their ready t-known ways. Example 1. Special plastic boxes are filled with loamy sandy soil containing 100 ppm of fungicide (Cys-H- (trichloromethylthio) -4-cyclohexene-1,2-carboximide) and 200 ppm of fertilizer (18-1818, N-P2 Od-KPO, plant seeds of experimental plants in them, water them and remove them under greenhouse conditions for 7-10 days. After this, the experimental plants are treated with preparative forms of active substances (I) and (II) separately and together and continue to grow them for 3 weeks. The herbicidal action is determined visually, compared to the control botanical plants, (%. The presence or absence of synergism is calculated using the well-known Limpel formula: E X Y where X is the degree of damage, plants (%) when using herbicide A in a dose of kg / ha; Y is the degree of damage to plants (%) when using herbicide B in a dose of ha kg / ha; expected damage to plants when using herbicides A + B jointly at a consumption rate of n + mkg / ha. In the case when the actual damage to the plants is more calculated, the effect of synergism is evident. The results of the experiments are presented in the table. The data presented in the table shows about. availability, synergism, ri sharing of compounds (I) and (II) and the effectiveness of the proposed herbicidal composition.

Claims (1)

A HERBICIDAL COMPOSITION containing, as an active substance, 3- (L-isopropylcarbamoyloxy) propionic acid anilide of the formula (I) o OCNHCH (CH ₃ ) ₂ CH ₃ CH ₂ CNH-X i am with me. the fact that, in order to increase the herbicidal activity, it additionally contains the N-e-til-M-cycle o hexyl-S-e-tilthiol carbamate of the formula (II) With _r H ₅ (h) -n-csc ₂ H5 ' ⁰ at the mass ratio of compounds, (1) :( II), equal to 1: (0.666-6), respectively. with> Ί